Torque Instructions - Graco Husky 3300 Repair Parts

Repair

Torque Instructions

See F . 8 for fluid cover and air valve fasteners. See
IG
F . 9 for manifold fasteners.
IG
NOTE: Fluid cover and manifold fasteners on the poly-
propylene pumps have a thread-locking adhesive patch
applied to the threads. If this patch is excessively worn,
the fasteners may loosen during operation. Replace
screws with new ones or apply medium-strength (blue)
Loctite or equivalent to the threads.
If fluid cover or manifold fasteners have been loosened,
it is important to torque them using the following proce-
dure to improve sealing.
NOTE: Always completely torque fluid covers, then
torque the manifold pieces together, then torque the
assembled manifolds to the fluid covers.
Start all fluid cover screws a few turns. Then turn down
each screw just until head contacts cover. Then turn
each screw by 1/2 turn or less working in a crisscross
pattern to specified torque. Repeat for manifolds.
Fluid Cover Screws
9
1
8
6
4
12
F . 8. Torque instructions, Fluid Covers and Air Valve Fasteners (all models, aluminum shown)
IG
20
11
3
5
7
2
10
ti16558a
X
Fluid cover fasteners:
Polypropylene and Stainless Steel: 40-45 ft-lb
(54-61 N•m)
Aluminum: 55-60 ft-lb (75-81 N•m)
Manifold fasteners:
Polypropylene: 40-45 ft-lb (54-61 N•m)
Aluminum:
Refs 1-8: 11-21 ft-lb (15-28 N•m)
Refs 9-16: 55-60 ft-lb (75-81 N•m)
Stainless Steel:
Refs 1-4: 110-120 in-lb (12-13 N•m)
Refs 5-12: 40-45 ft-lb (54-61 N•m)
Retorque the air valve fasteners in a crisscross pattern
to specified torque.
Air Valve fasteners
Plastic Center Sections: 45-55 in-lb (5-6.2 N•m)
Aluminum Center Sections: 75-85 in-lb
(8.5-9.6 N•m)
Also check and tighten the nuts or bolts (X) holding the
manifold feet to the mounting brackets.
Air Valve Screws
1
3
4
2
ti16560a
3A0411A